Steam-generator



(N o Model.)

} T. 0.. J-0;Y..

STE-AM GENERATOR.

Patented Feb. 5, 18-84 UNTT STATES THADDEUS C. JOY,

PATENT QFFICE.

OF TITUSVILLE, PENNSYLVANIA.

STEAM-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 292,822, dated February 5, 1884.

Application filed January 26, 1853.

T0 aZZ whom it may concern Be it known that I, THADDEUS C. JOY, a citizen of the United States, and a resident of Titusville, inthe county of Crawford and State of Pennsylvania, have invented a new and use ful Improvement in Steam Generators, of which the following is a specification.

My invention is more particularly applied to and is animprovement in form of construction of the steam-generators for which I hax e previously obtained Letters Patent as follows, viz No. 209,895, November 12, 1878 No. 233,624, October 26, 1880; No. 258,075, May 16, 1882, and No. 269,582, December 26,1882, all of which-are for sectional steamgenerators of various forms, my present invention being a change in form of the segments, whereby I simplify the construction, lessen the cost, and increase the area of the heating-surface.

My improvement is better illustrated andnnderstood by reference to the accompanying drawings, in which Figure 1 represents ahorizontalsection of my generator on line XX, Fig. 2; Fig. 2, a vertical section on line Y Y, Fig. 1;

and Fig. 3, an isometric view of one section,

Fig. 4, a similar view of one section as the segments are extended downward, inclosing the fire-box; and Fig. 5, a view and cross-section of narrow plates which may be inserted between the projections, completing the inclosure of the fuel-reservoir.

Similar letters refer to similar partsin the several figures.

Ais the generator, composed of the segments B, shown in the drawings as eight in number, but may be more or less, as desired. These segments are constructed hollow, as shown, and with the adjoining edges guttered or grooved,

' the upper partof each segment having an inward radial projection, E. When the segments are placed in position, as shown in Figs.

1 and 2, they form the outside or shell of the generator, inclosing the fire-chamber, and with the segmental annular water-chamber D, the radial projections E forming the segmental steam-dom he guttered sides forming the direct flues Water and steam connections are made between the adjoining sections at top and bottom, and with the external water and (No model.)

I steam pipes in the usual manner. These are not shown in the drawings, as they form no part of my improvement.

G is the casing or jacket inclosing the generator and forming the smoke-chamber H, between the return-flues F and the smoke-pipe I, leading to the chimney.

.So far as described the generator is of the form covered in the previous patents to me, above referred to. I now construct the segments B with the thin, flat, and hollow proj ection K, extending into the fire-chamber,the hollow space forming a part of the segmental water-chamber D, and also having free opening into the segmental steam-dome E. These projections may extend inward until the ends of the different, sections meet, or nearly so, forming and inclosing the central opening, L, which may be used as a fuel-reservoir, if detions form the direct flues M,which bring the products of combustion in close contact with the inner sides of the segmentsBand the sides of the projections K. The guttered sides of .the segments B form the return-flues F,which connect with the direct flues M at the top by reason of the inner wall of the gutters being shorter than the outer wall thereof. The sides of the steam-drums E are inclined or beveled from their upper edge and inner vertical edge toward the lower outer corner, fithereby forming a passage, an, over the end of the inner wall of the guttered side, as indicated by the arrow. The upper portions of the sides of these drums are also provided with depressions or semicircular recesses b, which segments, when placed together, form circular openings for the insertion of a suitable device into the return and direct fines, for the purpose of cleaning them, The sides of the projectionK are shown in the drawings as corrugated','which is the manner in which Iprefer to make them, as it materially increases the heating-surface. They may, however, be made flat, if desired. These projections may extend inward until the ends of the two adjoining sections meet, completely inclosing the fuel-reservoir L; or

spaces-between which may be filled, if desired,

sired. Thespaces between the different secthey may stop short of that point, leaving by narrow strips inserted between the ends of the projections, in that manner completing the inclosure of the fuel-reservoir. The view and cross-section of the narrow strips are shown in Fig. 5. In the drawing Fig. 2 the segments B are shown as standing on and con* nected to an annular water-ring around the fire-box C. If desired, the segments 13 may be extended below the projections K, in themselves forming the walls of the fire-box, as shown in Fig. I. I

I claim as my invention 1. In a circular segmental steam-generator, the inward projections K from the segments 13, constructed as described, and with free water communication with the water-chamber D, and the steam-drum E, the inner ends of said projections forming the walls of the central fuel-reservoir, L, substantially as described, and for the purposes herein set forth.

2. In a segmental steam-generator, the 1101* low segment having guttcred sides and provided with a radial steam-drum at its top, and hollow projections forming a part of the wall of the fuel-reservoir, having corrugated sides, substantially as shown and described.

- 3. In a circular steam-generator, the combination, with the outer casing, having asmoke-pipe leading therefrom, and an annular water-chamber located above the grate-bars, of a series of hollow segments having guttered sides which form return-fines, radial steamdrnms at the upper ends, and the corrugated projections which rest upon said annular chamber, forming the wall of the fuel-reservoir and direct fines between their opposite sides, substantially as described.

THADDEUS G. JOY.

\Vitnesses:

W. J. JACKSON, LEWIS B. SILLIMAX. 

